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TI-2026-28885 Aliases CVE-2026-40042GHSA-5j7x-7mp7-c5xc

Pachno 1.0.6 Wiki TextParser XML External Entity Injection

Priority MEDIUM 48CWE-403Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Pachno 1.0.6 contains an XML external entity injection vulnerability that allows unauthenticated attackers to read arbitrary files by exploiting unsafe XML parsing in the TextParser helper. Attackers can inject malicious XML entities through wiki table syntax and inline tags in issue descriptions, comments, and wiki articles to trigger entity resolution via simplexml_load_string() without LIBXML_NONET restrictions.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00373 31st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PachnoPachno1.0.6—No fix listedCNA
  • Pachno VendorPachno Affected 1.0.6 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40042
  2. 2026-10-03 Alias added: GHSA-5j7x-7mp7-c5xc

References

Advisory 1

  • TI-2026-28887 Pachno 1.0.6 FileCache Deserialization Remote Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2026-28883 Pachno 1.0.6 Unrestricted File Upload Remote Code Execution CVSS 4.0HIGH 8.7
  • TI-2026-28882 Pachno 1.0.6 Open Redirection via return_to Parameter CVSS 4.0HIGH 7.1
  • TI-2023-25648 A vulnerability has been identified in Pachno 1.0.6 allowing an authenticated attacker to… CVSS 3.1MEDIUM 5.4
  • TI-2026-28884 Pachno 1.0.6 Cross-Site Request Forgery via State-Changing Endpoints CVSS 4.0MEDIUM 5.3
  • TI-2026-28881 Pachno 1.0.6 Stored Cross-Site Scripting via Multiple Parameters CVSS 4.0MEDIUM 5.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences